Typically, unless the parties engage in “instantaneous” communication or are negotiating face-to-face, a contract will be formed when an “offer” to conclude the contract has been expressly or tacitly “accepted” by the party or parties to whom it was addressed.
Por regla general, salvo que las partes establezcan una comunicación “instantánea” o negocien cara a cara, el contrato se formará cuando la parte o las partes “acepten” expresa o tácitamente la “oferta” que se les haya hecho para celebrar el contrato.